Very High Energy Gamma Rays from Gamma Ray Bursts

MA Xin-Hua; ZHOU Xun-Xiu; WU Mei; ZHU Qing-Qi

Chinese Physics C> 2003, Vol. 27> Issue(11) : 973-977

Very High Energy Gamma Rays from Gamma Ray Bursts

Institute of High Energy Physics, CAS, Beijing 100039, China2 Science College of Southwest Jiaotong University, Chengdu 610031, China

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Abstract：
Very high energy gamma rays from gamma ray bursts are explained by the expanding fireball model. The high energy gamma ray generation efficiency, the relativistic effect, and the absorption in cosmic background radiation are taken into account. It is shown that the ejection of gamma rays with the energies higher than 10GeV may happen at the very beginning of the fireball expansion～10^－5s with a fluence up to 10^－4—10^－6cm^－2 arriving at the earth.

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MA Xin-Hua, ZHOU Xun-Xiu, WU Mei and ZHU Qing-Qi. Very High Energy Gamma Rays from Gamma Ray Bursts[J]. Chinese Physics C, 2003, 27(11): 973-977.

MA Xin-Hua, ZHOU Xun-Xiu, WU Mei and ZHU Qing-Qi. Very High Energy Gamma Rays from Gamma Ray Bursts[J]. Chinese Physics C, 2003, 27(11): 973-977. shu

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Received: 2003-04-29
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Very High Energy Gamma Rays from Gamma Ray Bursts

Corresponding author: MA Xin-Hua,

Institute of High Energy Physics, CAS, Beijing 100039, China2 Science College of Southwest Jiaotong University, Chengdu 610031, China

Received Date: 2003-04-29
Accepted Date: 1900-01-01
Available Online: 2003-11-05

Abstract: Very high energy gamma rays from gamma ray bursts are explained by the expanding fireball model. The high energy gamma ray generation efficiency, the relativistic effect, and the absorption in cosmic background radiation are taken into account. It is shown that the ejection of gamma rays with the energies higher than 10GeV may happen at the very beginning of the fireball expansion～10^－5s with a fluence up to 10^－4—10^－6cm^－2 arriving at the earth.